Boot is his name. Boot has a very thin aura of wiggliness surrounding his head. You can see it in the photo if you look carefully .... you only see that wiggly space, that vibration in the air near Boot, when he sits very still, all wound up and quivering because he knows you want him to stay, or sit, but what he really wants to do is run and chase. Endlessly.
all the curly things down there at the bottom of the picture? Oh, yeah -- those are the shapes Boot was just making in the barnyard mud immediately prior to sitting for his portrait! how could I forget?